TPA2033D1YZFT

Overview

The TPA2033D1YZFT is a 2.75-W fixed-gain mono filter-free Class-D audio power amplifier from Texas Instruments, housed in a 9-ball WCSP (YZF) package. It operates on a single supply voltage ranging from 2.5 V to 5.5 V and features a fixed gain of 3 V/V (9.5 dB). The device delivers high efficiency, reaching 88% at 400 mW into an 8-Ω load, with a quiescent current of 3.0 mA and shutdown current of 0.5 μA. It includes thermal and short-circuit protection, differential inputs, and requires only one external decoupling capacitor.

Feature Summary

• Fully differential architecture eliminates the need for input coupling capacitors and mid-supply bypass capacitors when used with properly biased sources.
• Fixed internal gain setting removes the requirement for external gain-setting resistors, simplifying the design.
• High power supply rejection ratio and common-mode rejection ratio provide improved RF immunity and noise cancellation.
• Integrated thermal and short-circuit protection safeguards the device during fault conditions.

Applications

• Wireless handsets
• Personal digital assistants (PDAs)
• Mobile devices

Procurement Notes

Verify the specific suffix 'T' indicates a tape-and-reel quantity of 250 units, distinct from the 'R' suffix which denotes 3000 units per reel. Confirm the YZF package designation corresponds to the lead-free wafer chip scale packaging. Ensure compatibility with the standard TPA203xD1 family pinout before finalizing procurement specifications.

Selection Notes

Select this component when a fixed gain of 3 V/V is required for mono audio applications. It is suitable for designs needing minimal external components and high efficiency in portable battery-powered devices. Consider the DSBGA-9 footprint constraints and ensure adequate PCB copper area for thermal dissipation given the small package size.

Part Context

This part belongs to the TPA203xD1 family of fixed-gain Class-D amplifiers. It shares the same physical package and pinout as the TPA2032D1 and TPA2034D1, differing primarily in its internal fixed gain value. The family is designed to replace discrete solutions or adjustable amplifiers in space-constrained mobile electronics.

Replacement Considerations

TPA2032D1YZFT offers identical packaging and functionality with a different fixed gain (2 V/V). TPA2034D1YZFT provides the same form factor but with a higher fixed gain (4 V/V). These parts are pin-compatible within the TPA203xD1 series.